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Sediments with and without Potamogetoncrispus were simultaneously incubated outdoors to determine the effects of plant growth on the nutrients migration. After 3 months of incubation, the Fe, Mn, Si, Cu and Zn concentrations of the plant roots were significantly higher than those of the shoots (p < .05). Additionally, when P. crispus was present, the nutrient contents varied in the descending...
The properties of plaques were different on the root surface of Potamogeton crispus planted in sediments from two different shallow lakes. Lake Tangxunhu sediment, with low pH, contained low organic matter, whereas Lake Yuehu sediment, with high pH, had high calcium deposits mixed with high organic matter. The contents of mineral elements in sediment of Lake Tangxunhu was lower than that of Lake Yuehu,...
Choosing bio-material of Eichhornia crassipes from five plant materials through comparison on their exchangeable capacity to copper and carboxyl content, cellulose xanthogenate was prepared by raw fiber of E. crassipes with NaOH and CS 2 . The exchange adsorption properties of the product on copper were investigated and the optimum preparing condition was obtained. The results showed that...
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